The researchers found that anxiety was most apparent in male rats during their adolescence. (sciencedaily.com)
For instance, the average adult male rat is about ten inches long, therefore, his cage should be 30 to 40 inches long. (petbusiness.com)
Male rats exposed to cocaine may pass epigenetic changes on to their male offspring, thereby altering the next generation's response to the drug. (sciencedaily.com)